Tools, Tones and Toys for Guitarists
Just some historic speaker info from 1967 – although I had to leave a page of advertisements in, as it has a kit for a fuzz box available from Moody. For those not from Australia, Moody was a guitar amp brand, which was one of the big names back in the day. I had no … Read more
I picked this one up from a factory in an industrial area – apparently, it had been sitting there as long as anyone can remember, and it was actually used to play music at one stage. I know one thing for sure – they never opened it up to dust it. PHILIPS EV4437 … Read more
Just documenting my latest Bell & Howell conversion. – Model 601 amplifier, with 1950 capacitor dates.
The original schematic for the 385 was killing me – just too many part numbers listed, so I cleaned it up a bit. I also removed the projector circuits. I think there are two versions of this amp – this is the 6V6 version, while the other uses EL84s (which is nearly impossible to find … Read more
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This four-channel beast is a hybrid valve PA amp, built by a bloke named Jim Farrington in NSW sometime in the late sixties or maybe seventies. From what I can tell, they mostly stayed local to where he lived, and you don’t see many pop up anywhere. I picked this up on eBay, and it … Read more
Documenting another Bell & Howell amplifier conversion. While it has a different model number and a shiny red faceplate, it’s the same amp as the 621 and others in the series. Quite often, variations of the model number has more to do with the projector than the amp. BELL & HOWELL 622 PROJECTOR AMPLIFIER Stock … Read more
The Colorsound Overdriver / Power Boost family went through a few different versions over the years. This layout is for the classic 1971 9V Overdriver version – essentially the 9V successor to the earlier 18V Power Boost, with the same basic three–transistor topology but set up for a standard single-supply pedalboard. It makes a huge, … Read more
Just a Fuzz Face layout that I used recently and want to make note of – it’s based on the one knob fuzz line, which is a handy little layout, but didn’t quite suit my needs. With some minor adjustments, it can be used for most fuzz face variants – component table here. FUZZ … Read more
I’ve had a couple of questions about these recently, and out of curiosity I decided to take a closer look. In 2024, Sola Sound released a few versions of a hybrid MKI, built by Dave Main of D*A*M. So what is it? It’s essentially a standard MKI circuit, but with the first two germanium transistors … Read more